OneKey means all your resources are in one place for maximum convenience, simplicity, and success.What's Key for Students?Learning Modules - Every section of all 19 chapters is supported by section level pretest, content summary for review, learning application exercise, and post-test. Learning modules are a great way to study for exams and are not connected to the instructor grade book offering unlimited practice. Prentice Hall's Self-Assessment Library (S.A.L) Research Navigator (TM) - is the easiest way for students to start a research assignment or research paper. Complete with extensive help on the research process and four exclusive databases of credible and reliable source material - including the EBSCO Academic Journal and Abstract Database, New York Times Article Archive and Company Financials. Research navigator helps students quickly and efficiently make the most of their research time.